Yes you can. SLA is nothing but a field that show the time elapsed. You can always create a scripted field using Script Runner plugin to auto calculate a field.
The JIRA Service Desk offers creating more SLAs easily and there are reports that help team take better decisions, but if you just want to have a field that displays the time between two events, then you can do it without JIRA Service Desk too.
Actually SLA is a bit more complex if you have to allow for frozen mode, changing the SLA and applying it to active issues, searching on breached/non breached.
I've been working with a customer who is writing their own SLA add-on and it's not as straightforward as it seems
Hey Community mates! Claire here from the Software Product Marketing team. We all know software development changes rapidly, and it's often tough to keep up. But from our research, we've found the h...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs